Audio output.
Yes. Almost all mobile phones have at least one output port - to connect it to a computer via a USB cable.
output
Well have to have a webcam speakers/headset/or ear phones
It likely that you plugged your headphones into the wrong jack. There should be a jack for your headphones on your computer that has the head-phones label on it, not the one with speakers or for a microphone.
Unicorns
just the magnets in the built in speakers
are computer phones cheaper than land line ones?
Close to 100%. ATMs and Cellular Phones are computers. Input, Processing, Storage, Output. If a machine does that, it is a computer.
It is an output which is the band of frequencies which are audible when fed to a suitable transducer, e.g. a loudspeaker or a pair of 'phones.
Yes, cell phones are input-output devices.The 'input' part is you pressing keys to dial a number. The 'output' is the display screen.
Yes, the speaker and the screen.
NO, cell phones contin a cpu, input and output devices but no hard drive